JPS5173464A - - Google Patents

Info

Publication number
JPS5173464A
JPS5173464A JP50136446A JP13644675A JPS5173464A JP S5173464 A JPS5173464 A JP S5173464A JP 50136446 A JP50136446 A JP 50136446A JP 13644675 A JP13644675 A JP 13644675A JP S5173464 A JPS5173464 A JP S5173464A
Authority
JP
Japan
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP50136446A
Other languages
Japanese (ja)
Other versions
JPS6212476B2 (en
Inventor
Oo Shonsutetsuto Eritsuku
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHOONSUTETSUTO INSUTSURUMENTO
SHOONSUTETSUTO INSUTSURUMENTO CO
Original Assignee
SHOONSUTETSUTO INSUTSURUMENTO
SHOONSUTETSUTO INSUTSURUMENTO CO
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHOONSUTETSUTO INSUTSURUMENTO, SHOONSUTETSUTO INSUTSURUMENTO CO filed Critical SHOONSUTETSUTO INSUTSURUMENTO
Publication of JPS5173464A publication Critical patent/JPS5173464A/ja
Publication of JPS6212476B2 publication Critical patent/JPS6212476B2/ja
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/022—Measuring gradient
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Measuring Magnetic Variables (AREA)
  • Geophysics And Detection Of Objects (AREA)
JP50136446A 1974-11-20 1975-11-14 Expired JPS6212476B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/525,574 US3961245A (en) 1974-11-20 1974-11-20 Magnetic locator having improved sensors

Publications (2)

Publication Number Publication Date
JPS5173464A true JPS5173464A (en) 1976-06-25
JPS6212476B2 JPS6212476B2 (en) 1987-03-18

Family

ID=24093800

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50136446A Expired JPS6212476B2 (en) 1974-11-20 1975-11-14

Country Status (5)

Country Link
US (1) US3961245A (en)
JP (1) JPS6212476B2 (en)
CA (1) CA1037121A (en)
DE (1) DE2551968C3 (en)
GB (1) GB1494865A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5730965A (en) * 1980-06-24 1982-02-19 Schonstedt Instrument Co Magnetic sensor with non-centering compensating means
JP2014126440A (en) * 2012-12-26 2014-07-07 Okinawa Keisoku Co Ltd Magnetic probe equipment

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2832251A1 (en) * 1978-07-22 1980-02-21 Foerster Friedrich Dr Detector for ferromagnetic objects in homogeneous field - uses three colinear field detectors to determine range and size of object
DE2942847C2 (en) * 1979-10-24 1983-03-24 Friedrich Dr.phil. 7410 Reutlingen Förster Magnetic field difference probe
US4388592A (en) * 1980-06-24 1983-06-14 Schonstedt Instrument Company Multiaxis magnetometer apparatus with orthogonally disposed rectangular housings for mounting separate sensor assemblies
IT1171429B (en) * 1981-07-31 1987-06-10 Consiglio Nazionale Ricerche IMPROVEMENT IN THE DEVICE FOR BIOMAGNETIC MEASUREMENTS USING SECOND DERIVATIVE GRADIOMETERS
DE3221301A1 (en) * 1982-06-05 1983-12-08 Seba-Dynatronic Mess- und Ortungstechnik gmbH, 8601 Baunach METHOD FOR LOCATING UNDERGROUND, FERROMAGNETIC BODY
US4590425A (en) * 1982-06-23 1986-05-20 Schonstedt Instrument Company Magnetic detector apparatus with excitation conductors connected in series via sensor housing
US4539522A (en) * 1982-06-23 1985-09-03 Schonstedt Instrument Company Magnetic detector apparatus with liquid-supported, conductive, sensor-support tube
US4536710A (en) * 1982-08-10 1985-08-20 Schonstedt Instrument Company Magnetic detector instrument with board-mounted sensor assembly
US4520318A (en) * 1983-02-17 1985-05-28 Marcel Hascal Electric field strength indicator
CA1244083A (en) * 1985-07-25 1988-11-01 George Gee Instrument for sensing ferromagnetic bodies
SE8600148L (en) * 1986-01-14 1987-07-15 Marineagent Ab MAGNETIC GRADIOMETER
US5106175A (en) * 1989-12-28 1992-04-21 At&T Bell Laboratories Locatable object suitable for underground use and methods of locating same
US5136245A (en) * 1990-05-25 1992-08-04 Schonstedt Instrument Company Magnetic detection apparatus with sensors mounted on channel or angle cantilever support
US5097211A (en) * 1990-05-25 1992-03-17 Schonstedt Instrument Company Magnetic detection appartaus with plastic housing and sound-transmissive handle
US5138761A (en) * 1990-05-25 1992-08-18 Schonstedt Instrument Company Method of manufacturing magnetic detection apparatus
DE4232466A1 (en) * 1992-09-28 1994-03-31 Klaus Ebinger Magnetometer probe
WO1994024584A1 (en) * 1993-04-20 1994-10-27 Schonstedt Instrument Company Methods of detecting location of magnetically-marked elongated buried objects
US6380735B1 (en) * 1999-04-30 2002-04-30 Sumitomo Special Metals Co., Ltd. Orthogonal flux-gate type magnetic sensor
US6960912B2 (en) * 2003-05-12 2005-11-01 Vacuumschmelze Gmbh & Co. Kg Magnetic field sensor device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4979267A (en) * 1972-11-03 1974-07-31

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3050679A (en) * 1960-02-18 1962-08-21 Erick O Schonstedt Device for detecting or measuring magnetic fields

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4979267A (en) * 1972-11-03 1974-07-31

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5730965A (en) * 1980-06-24 1982-02-19 Schonstedt Instrument Co Magnetic sensor with non-centering compensating means
JP2014126440A (en) * 2012-12-26 2014-07-07 Okinawa Keisoku Co Ltd Magnetic probe equipment

Also Published As

Publication number Publication date
CA1037121A (en) 1978-08-22
US3961245A (en) 1976-06-01
JPS6212476B2 (en) 1987-03-18
DE2551968C3 (en) 1978-03-02
DE2551968A1 (en) 1976-05-26
DE2551968B2 (en) 1977-07-07
GB1494865A (en) 1977-12-14

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